Olivier Dufresne
CEO/Cofounder
ET
Exterra Technologies
Exterra Technologies develops next‑generation mineral processing solutions that enable miners to bring critical minerals to market faster, at lower cost, and with reduced environmental impact.
- Clean Technology
- Energy
- Industrial Automation
- New Materials
Updated today
Funding
Raised to date
$2.4MRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Funding rounds are not available yet.
Founders
Product
Problem
Current mineral processing relies on single‑use acids and bases, generating large volumes of hazardous waste and driving up operating costs. This linear approach hampers the rapid, cost‑effective production of critical minerals and raises environmental compliance challenges for mining operations.
Solution
Exterra Technologies offers a closed‑loop Acid Regeneration Cycle (ARC™) that continuously recycles extraction acids and bases on‑site, eliminating the need for fresh reagents and reducing waste streams. By integrating ARC™ into customized processing flowsheets tailored to each commodity and ore type, the company enables faster metal recovery, lower reagent expenses, and a smaller environmental footprint. The technology can be retrofitted into existing plants or incorporated into new facilities, providing miners with a scalable path to improve profitability while meeting stricter sustainability standards.
Target Audience
Primary customers are mining companies and mineral processing contractors focused on extracting critical minerals such as lithium, rare earth elements, and copper, particularly those seeking to improve cost efficiency and sustainability.
Features
- Proprietary ARC™ system that regenerates and reuses acids and bases in a continuous closed loop
- Commodity‑specific processing flowsheets designed to optimize recovery for a wide range of critical minerals
- Modular design allowing integration with existing processing infrastructure or new plant builds
- Reduced reagent consumption and hazardous waste generation, lowering operating costs and environmental impact
- On‑site reagent management that minimizes logistics, storage, and handling requirements